Application Value of Sevoflurane Combined with Brachial Plexus Block in Children with Humeral Fracture Surgery and its Effect on Hemodynamics: A Clinical and Anatomical Study

SUMMARY: To observe the effect of sevoflurane combined with brachial plexus block (BPB) in children with humeral fracture surgery and its effect on hemodynamics. 84 children who received surgical treatment of humeral fracture in our hospital from September 2019 to September 2022 were selected. According to different anesthesia methods, the children were divided into control group and study group. The control group only received laryngeal mask sevoflurane; the study group received laryngeal mask sevoflurane combined with BPB. The operation situation, hemodynamic indexes, stress level, pain and adverse reactions of children was observed. The postoperative awakening time in the study group was lower than control group, the postoperative pain onset time in the study group was higher than control group (P0.05). Postoperative 2h, the levels of serum cortisol, b-endorpin, norepinephrine and epinephrine in the study group were lower than control group (P0.05). Sevoflurane combined with BPB is helpful to shorten the postoperative awakening time of children with humeral fracture, reduce the degree of postoperative pain, improve hemodynamics, and reduce stress response, and has good safety.

El objetivo fue observar el efecto del sevoflurano combinado con bloqueo del plexo braquial (BPB) en niños con cirugía de fractura de húmero y su efecto sobre la hemodinámica. Se seleccionaron 84 niños que recibieron tratamiento quirúrgico de fractura de húmero en nuestro hospital desde septiembre de 2019 hasta septiembre de 2022. Según diferentes métodos de anestesia, los niños se dividieron en grupo control y grupo de estudio. El grupo control solo recibió sevoflurano en mascarilla laríngea; el grupo de estudio recibió sevoflurano con mascarilla laríngea combinado con BPB. Se observó la situación operatoria, índices hemodinámicos, nivel de estrés, dolor y reacciones adversas de los niños. El tiempo hasta el despertar postoperatorio en el grupo de estudio fue menor que el del grupo control, el tiempo de aparición del dolor postoperatorio en el grupo de estudio fue mayor que el del grupo control (P0,05). A las 2 horas postoperatorias, los niveles séricos de cortisol, β-endorfina, norepinefrina y epinefrina en el grupo de estudio fueron más bajos que los del grupo control (P 0,05). El sevoflurano combinado con BPB es útil para acortar el tiempo de despertar del posoperatorio de los niños con fractura de húmero, reduce el grado de dolor postoperatorio, mejora la hemodinámica y reduce la respuesta al estrés, además de tener buena seguridad.

Dexmedetomidine versus sufentanil as adjuvants to bupivacaine for brachial plexus block during upper extremity surgery: a randomized clinical trial

Abstract Background: Brachial plexus block (BPB) has been accepted as a reliable alternative for general anesthesia in upper limb surgeries. Adding adjuvant drugs like dexmedetomidine and sufentanil has been shown to have clinical and pharmacologic advantages. In this randomized parallel clinical trial, we aim to compare the effects of these two adjuvants for bupivacaine in BPB. Methods: In this double-blinded study, by using computer-assisted block randomization, 40 patients ranged from 20 to 65 years old and scheduled for elective upper limb surgeries were assigned to two equal study groups (n = 20), receiving 1 mL of 5 μg.mL-1 sufentanil (group S) or 1 mL of 100 μg.mL-1 dexmedetomidine (group D) in adjunction to 30 mL of 0.5% bupivacaine for supraclavicular BPB under the guidance of ultrasonography. Characteristics of local anesthesia and postoperative analgesia were evaluated (n = 40). Results: The duration of blocks significantly improved in group S (sensory: estimated median difference (EMD) [95%CI] = 100.0 [70.0~130.0], p < 0.001; motor: EMD [95%CI] = 120.0 [100.0~130.0], p < 0.001). Group S also had significantly longer postoperative analgesia and lower opioid consumption within 24 hours after the surgery (EMD [95%CI] = 4.0 [3.0~7.0], p < 0.001; EMD [95%CI] = -5.0 [-5.0~-5.0], p < 0.001; respectively). None of the patients showed adverse effects concerning vital signs, nausea, or vomiting. Conclusion: Our study showed that during ultrasound-guided supraclavicular BPB, sufentanil is a fairly better choice than dexmedetomidine as an adjuvant for bupivacaine and can provide preferable sensory and motor blocks. No significant side effects were seen in either of the study groups.

Perineural low dexamethasone dose as adjuvant in supraclavicular brachial plexus block for arteriovenous fistula creation in end stage renal disease: a randomized controlled trial

Abstract Background and aims: Dexamethasone as adjunct to local anesthetic solution improves the quality of brachial plexus block (BPB). However, evidence for its efficacy at low doses (< 4 mg) is lacking. This study was designed to evaluate the duration of analgesia attained with low dose dexamethasone as adjuvant to local anesthetic for creation of arteriovenous fistula (AVF) under BPB. Methods: Sixty-six patients scheduled for AVF creation were randomly allocated to receive either saline (control) or 2 mg dexamethasone, together with 0.5% ropivacaine and 0.2% lignocaine. The primary outcome was duration of analgesia, defined as time from performing the block to the first analgesic request. The secondary outcomes were time from injection to complete sensory block, time from injection to complete motor block, duration of motor block, postoperative analgesic consumption, and fistula patency at three months. Results: All the blocks were effective. In the group that received dexamethasone, the time to first analgesic request was significantly delayed (432 ± 43.8 minutes vs. 386.4 ± 40.2 minutes; p < 0.01). The onset of sensory and motor blockade occurred faster in dexamethasone group and overall analgesic consumption was also reduced. However, dexamethasone addition did not prolong the duration of motor block. There was no statistically significant difference in the patency of fistulas between the two groups at three months. (p = 0.34). Conclusion: Addition of low-dose perineural dexamethasone to local anesthetic solution significantly prolonged the duration of analgesia. Further trials are warranted to compare the adverse effects between dexamethasone doses of 4 mg and lower.

Influencia de posición del brazo en adultos para abordaje de plexo braquial costoclavicular: estudio observacional / Influence of arm position in costoclavicular approach for brachial plexus block in adult patient: observational study

Resumen: Introducción: el bloqueo de plexo braquial con abordaje costoclavicular, ofrece ventajas como sitio de inyección único, sitio adecuado para colocación de catéter de analgesia continua. Objetivo: identificar la visibilidad de los tres cordones del plexo braquial en el espacio costoclavicular según la angulación del brazo. Material y métodos: se realizó un estudio observacional descriptivo y transversal; se incluyeron 99 pacientes entre 18 a 90 años de edad, en un período de dos meses. Se describieron variables continuas, se aplicó la prueba no paramétrica de Friedman para K muestras relacionadas, una regresión lineal para confirmar la correlación entre la distancia de la piel a plexo braquial, peso e índice de masa corporal (IMC). Resultados: se encontró una menor profundidad en relación piel plexo bajo abducción del brazo a una angulación de 90o y 110o, que permite la visualización sonoanatómica del plexo braquial a nivel costoclavicular con significancia estadística. El peso es un factor independiente que determina la distancia entre la profundidad piel plexo. Conclusiones: se determinó que el abordaje del bloqueo costoclavicular ecoguiado es anatómicamente factible con elevada eficacia clínica, el cual concluye ser un sitio anatómico innovador y seguro.

Abstract: Introduction: the brachial plexus block with a costoclavicular approach offers advantages as a single injection site, being a suitable site for continuous analgesia catheter placement. Objective: to identify the visibility of the 3 brachial plexus cords in the costoclavicular space according to the angulation of the arm. Material and methods: a descriptive and cross-sectional observational study was carried out; 99 healthy patients between 18 and 90 years of age were included, in a period of two months. Continuous variables were described, the nonparametric Friedman test was applied for K related samples, a linear regression was performed to confirm the correlation between the distance from the skin to the brachial plexus, weight and body mass index (BMI). Results: a smaller depth was found in relation to the skin plexus under abduction of the arm at an angulation of 90o and 110o, which allows an adequate sonoanatomical visualization of the brachial plexus at the costoclavicular level with statistical significance. Weight is an independent factor that determine the distance between the skin plexus depth. Conclusions: it was determined that the ultrasound-guided costoclavicular block approach is anatomically feasible with greater clinical efficacy, which concludes to be an innovative and safe anatomical site.

Bloqueo de plexo braquial con ultrasonido: estudio descriptivo de práctica clínica habitual en 283 niños / Brachial plexus block with ultrasound: a descriptive study of routine clinical practice in 283 children

Resumen: Introducción: en años recientes con el renacimiento de la anestesia regional a causa de los avances técnicos en equipamiento como el ultrasonido, estos han permitido llevar a cabo bloqueos de plexo braquial con varias técnicas de abordaje, alta eficacia de éxito y disminución de complicaciones. Objetivo: conocer la eficacia y seguridad del bloqueo de plexo braquial con ultrasonido, en anestesiólogos con especialidad en anestesia regional. Material y métodos: se realizó el estudio observacional, descriptivo y retrospectivo de la práctica clínica habitual en 283 pacientes de 0 a 15 años, programados para cirugía electiva de ortopedia y traumatología, de extremidad superior (húmero tercio distal, codo, antebrazo y mano), con manejo anestésico: sedación más bloqueo de plexo braquial con ultrasonido abordaje supraclavicular o infraclavicular. Durante dos años, de enero de 2018 a diciembre de 2019. Resultados: los bloqueos fueron realizados por 11 anestesiólogos con especialidad en anestesia regional. Se evaluó la eficacia con 99.65% de éxito. En cuanto a la seguridad no se registraron complicaciones. Conclusiones: el uso de ultrasonido en bloqueo de plexo braquial con abordaje supraclavicular e infraclavicular es una técnica con éxito alto y sin complicaciones; sin embargo, es necesario tener capacitación y experiencia.

Abstract: Introduction: in recent years with the revival of regional anesthesia due to technical advances in equipment such as ultrasound, have allowed to carry out brachial plexus blocks with several approach techniques with high efficiency of success and reduction of complications. Objective: to know the efficacy and safety of brachial plexus block with ultrasound, in anesthesiologists with a specialty in regional anesthesia. Material and methods: the observational, descriptive, retrospective study of the usual clinical practice was carried out in 283 patients from 0 to 15 years old, scheduled for elective orthopedic surgery and traumatology, of the upper extremity (distal third humerus, elbow, forearm and hand), with anesthetic management: sedation plus brachial plexus block with ultrasound supraclavicular or infraclavicular approach. For two years from January 2018 to December 2019. Results: the blocks were performed by 11 anesthesiologists specializing in regional anesthesia. Efficacy was evaluated with 99.65% success. In terms of safety, there were no complications. Conclusions: the use of ultrasound in brachial plexus block with supraclavicular and infraclavicular approach is a technique with high success and without complications however it is necessary to have training and experience.

A rare variation of radial nerve coexisting with the intercalated ectopic muscle from latissimus dorsi muscle / Una rara variación del nervio radial que coexiste con el músculo ectópico intercalado del músculo latísimo del dorso

SUMMARY: The axilla is the main communication channel connecting the upper limbs, the neck and chest. Stabilization of the internal structure is essential for upper limb and shoulder mobility. In this case, we observed and recorded the characteristics of the variation of the radial nerve as well as the intercalated ectopic muscle from latissimus dorsi muscle. The position relationship between both, was also particularly noted by us. In view of the presence of the variation we reported, related clinical research, surgery and disease diagnosis are expected to take this case into account.

La axila es el principal canal de comunicación que conecta los miembros superiores, el cuello y el tórax. La estabilización de la estructura interna es fundamental para la movilidad del miembro superior y del hombro. En este caso observamos y registramos las características de la variación del nervio radial así como del músculo ectópico intercalado del músculo latísimo del dorso. La relación de posición entre ambas también fue significativa en este estudio. En vista de la presencia de la variación que informamos, se espera que la investigación clínica relacionada con la cirugía y el diagnóstico de la enfermedad tengan en cuenta este caso.

Debridement of axillary necrotizing fasciitis under anesthetic blocks of the serratus plane and supraclavicular brachial plexus: a case report

Abstract The regional techniques for axillary analgesia are well established. However, few studies have investigated surgical anesthesia. In this report, extensive debridement of axillary necrotizing fasciitis, including the posteromedial region of the right arm, performed under exclusive regional anesthesia in a patient with probable difficult airway is described. The procedure was accomplished under a Serratus Plane Block (SPB) and supraclavicular brachial plexus block, guided by ultrasound, and with venous sedation. We observed satisfactory anesthesia 15 minutes after the intervention, efficient intraoperative pain control and within the following 24 hours. Surgical axilla anesthesia is feasible with the described blocks.

Protocolo de recuperación intensificada durante la cirugía del plexo braquial (RIPLEX) / ntensified Recovery Protocol during Brachial Plexus Surgery (RIPLEX)

La restauración de la función del miembro superior en los pacientes que sufren lesiones del plexo braquial para favorecer la mejoría en su calidad de vida. Así como su reinserción social y laboral, se puede optimizar mediante la implementación de programas de recuperación intensificada o mejorada, multimodales, multidisciplinarios, y de elevados estándares cualitativos, denominados protocolos ERAS (Enhanced Recovery After Surgery), se recomienda la utilización de métodos fundamentados en la mejor evidencia científica disponible. El protocolo que se expone, aplicado en el Complejo Científico Ortopédico Internacional "Frank Paísˮ, derivado de una investigación institucional en curso. Objetivos: Contribuir en el desarrollo del conocimiento científico imprescindible para favorecer la introducción y sistematización de los cuidados perioperatorios multimodales durante las intervenciones quirúrgicas del plexo braquial.

Introduction: Restoration of upper limb function in patients suffering from brachial plexus injuries, in view of favoring improvement in their quality of life or their social and labor reinsertion, can be optimized by means of implementing multimodal, multidisciplinary, intensified or enhanced recovery programs with high qualitative standards, called ERAS (enhanced recovery after surgery) protocols. The use of methods based on the best available scientific evidence is recommended. The protocol presented here is applied at Complejo Científico Ortopédico Internacional "Frank Paísˮ and derived from an ongoing institutional research. Objective: To contribute to the development of scientific knowledge essential to favor the introduction and systematization of multimodal perioperative care during brachial plexus surgical interventions.

Dexmedetomidine versus clonidine as an adjuvant to local anaesthetic in brachial plexus blocks: a metaanalysis of randomised controlled trials

Abstract Objective: This meta-analysis aimed to compare the efficacy and safety of dexmedetomidine and Clonidine as an adjuvant to local anesthetics in BPBs. Methods: Two investigators independently searched databases to identify all RCTs comparing the efficacy and/or safety of dexmedetomidine and Clonidine as an adjuvant to local anesthetics in BPBs. All outcomes were pooled using the inverse variance method with a random-effect model. An I2 test was used to assess heterogeneity. The source of heterogeneity was explored through meta-regression. The quality of the evidence was assessed using the GRADE approach. Results: Out of 123 full texts assessed, 24 studies (1448 patients) were included in the analysis. As compared to Clonidine, dexmedetomidine groups showed significantly longer sensory block duration (MD = 173.31; 95% CI 138.02-208.59; I2 = 99%; GRADE approach evidence: high); motor block duration (MD = 158.35; 95% CI 131.55-185.16; I2 = 98%; GRADE approach evidence: high), duration of analgesia (MD = 203.92; 95% CI 169.25-238.58; I2 = 99%; GRADE approach evidence-high), and provided higher grade quality of block (RR = 1.97; 95% CI 1.60-2.41 ; I2 = 0%; GRADE approach evidence: moderate). The block positioning technique (regression coefficient: 51.45, p = 0.005) was observed as a significant predictor of the heterogeneity in the case of sensory block duration. No significant difference was observed for the risk of hypotension (RR = 2.59; 95% CI 0.63-10.66; I2 = %). Conclusion: Moderate to high-quality evidence suggests dexmedetomidine is a more efficacious adjuvant to local anesthetic in BPBs than Clonidine.

TO STUDY THE EFFECT OF DEXAMETHASONE AS AN ADJUVANT TO LOCAL ANAESTHETICS IN SUPRACLAVICULAR BRACHIAL PLEXUS BLOCK

BackgroundThere is an increase in use of regional anaesthetic techniques in various surgeries.Steroids have anti inflammatory and analgesic properties. Hence , we decided to study the efficacy ofdexamethasone as an adjuvant to local anaesthetic agents in supraclavicular brachial plexus block vialandmark approach for upper limb orthopaedic surgeries.Materials and MethodsAfter ethical clearance, and informed written consent, this prospective randomised controlled clinical studywas carried out in 50 patients, aged 18-50 years, ASA grade I or II, scheduled for elective or emergencyorthopaedic upper limb surgeries.Patients were randomly divided into two groups,Group A- received Inj. Bupivacaine 0.5% 10 ml, Inj. Lignocaine + Adrenaline (1.5%) 20 ml and Inj..Normal saline (0.9%) 2 mlGroup B- received Inj. Bupivacaine 0.5% 10 ml, Inj. Lignocaine + Adrenaline (1.5%) 20 ml and Inj.Dexamethasone (8 mg) 2 mlAfter confirming complete motor and sensory blockade, surgery was commenced.VAS score was recorded for 18 hours postoperatively where 0 equals no pain and 10 as worst possible pain.Results-● The onset of sensory and motor block was significantly faster in patients who receivedcombination of local anaesthetic and dexamethasone.● The duration of motor and sensory block in dexamethasone group was significantly higher thancontrol group.● There was no significant difference in the hemodynamics found between the two groupsperioperatively.● The duration of post operative analgesia was prolonged in dexamethasone group as compared tocontrol group.● Postoperatively, no complications were observed in any group.ConclusionThe addition of dexamethasone to local anaesthetics in supraclavicular approach of brachial plexus blockproduces adequate anaesthesia with following advantage.• Dexamethasone hastens the time of onset of sensory and motor blockade.• It prolongs the duration of sensory and motor blockade.• It prolongs the duration of postoperative analgesia.• Dexamethasone provides stable haemodynamics without any unwanted side effects in perioperative

Clinical Comparative Evaluation of Bupivacaine with Fentanyl and Ropivacaine with Fentanyl in Upper Limb Surgery Under Supraclavicular Brachial Plexus Block

Introduction: A lot of surgeries are now performed to reduce a number of physical ailments. Although these surgeries are done to reduce the sufferings these inevitably lead to a lot of pain for the patient. Material and Methods: Our study comprises of 60 patients who had undergone elective upper limb surgery in a tertiary care centre of central India. Patients of both genders, in age group 18-60 years with American Society of Anaesthesiology (ASA) grade I or II were included in our study and divided in two groups of 30 each. Results: Data was entered into MS-Excel sheet and analysed by SPSS version 20. Quantitative data was compared by using student t-test and qualitative data by using chi-square test and Fisher exact test, as applicable. P<0.05 was considered as statistically significant. Both the groups were similar in demographic and surgical characteristics. However, we found that the group given bupivacaine and fentanyl had longer duration of sensory and motor block and post-operative analgesia than ropivacaine and fentanyl group (p<0.001). Conclusion: Combination of bupivacaine with fentanyl provides longer duration of sensory block, motor block and postoperative analgesia without any major side effects than combination of ropivacaine with fentanyl with comparable haemodynamic in both groups.

An alternative approach for blocking the superior trunk of the brachial plexus evaluated by a single arm clinical trial

Abstract Background Interscalene brachial plexus block is associated with phrenic nerve paralysis. The objective of this study was to evaluate an alternative approach to interscalene brachial plexus blocks in terms of efficacy, grade of motor and sensory blockade, and phrenic nerve blockade. Methods The study was prospective and interventional. The ten living patients studied were 18 to 65 years old, ASA physical status I or II, and submitted to correction of rotator cuff injury. A superior trunk blockade was performed at the superior trunk below the omohyoid muscle, without blocking the phrenic nerve. The needle was advanced below the prevertebral layer until contacting the superior trunk. In order to guarantee the correct positioning of the needle tip, an intracluster pattern of the spread was visualized. The block was performed with 5 mL of 0.5% bupivacaine in ten patients. In the six cadavers, 5 mL of methylene blue was injected. Diaphragmatic excursion was assessed by ultrasonography of the ipsilateral hemidiaphragm. In three patients, pulmonary ventilation was evaluated with impedance tomography. Pain scores and analgesic consumption were assessed in the recovery room for 6 hours after the blockade. Results In the six cadavers, methylene blue didn't reach the phrenic nerve. Ten patients underwent arthroscopic surgery, and no clinically phrenic nerve paralysis was observed. No patient reported pain during the first 6 hours. Conclusions This study suggests that this new superior trunk approach to block the superior trunk may be an alternative technique to promote analgesia for shoulder surgery in patients with impaired respiratory function.

Efectividad del bloqueo de plexo braquial con abordaje costoclavicular y factores que modifican la sonoanatomía en pacientes pediátricos / Effectiveness of brachial plexus block with costoclavicular approach and factors modifying sonoanatomy in pediatric patients

Resumen: El bloqueo de plexo braquial en pediatría se ha posicionado como una buena alternativa para procedimientos quirúrgicos de la extremidad superior, en especial a partir del advenimiento de la ultrasonografía. El objetivo del estudio fue evaluar la efectividad del bloqueo con el abordaje costoclavicular en la población pediátrica, comparar la sonoanatomía de la ventana costoclavicular con la coracoidea y determinar si la posición del brazo impacta en la imagen ultrasonográfica. Se evaluaron un total de ocho pacientes con fracturas de miembro superior. De los ocho pacientes, cinco eran de género masculino (62.5%), tres de género femenino (37.5%) con una edad promedio de 8.8 años. Se realizó rastreo ultrasonográfico comparando la sonoanatomía del abordaje costoclavicular y coracoideos, observando mejor los cordones del plexo braquial y estructuras vasculares con el abordaje costoclavicular. Con el brazo en abducción 90 y 110o se optimizó la visualización de las estructuras neurovasculares y mejoría en la calidad del bloqueo. La dosis de ropivacaína fue de 1.5 mg/kg entre el 0.3-0.5%, con un tiempo de bloqueo motor promedio de 6.4 horas, y bloqueo sensitivo promedio de 11 horas. No se presentaron complicaciones. En conclusión, el bloqueo de plexo braquial por vía costoclavicular en la población pediátrica es una técnica segura.

Abstract: Pediatric brachial plexus block has become a good alternative for upper extremity surgical procedures, especially since the advent of ultrasonography. The main aim of the study was to evaluate the effectiveness of the blockade with the costoclavicular approach in the pediatric population, and compare the sonoanatomy of the costoclavicular window with the coracoid one, and determinate if the position of the arm has an impact on the ultrasound image. A total of eight patients with upper limb fractures were evaluated. Of the eight patients, five were male (62.5%), three female (37.5%) with a mean age of 8.8 years. Ultrasonographic screening was performed comparing the sonoanatomy of the costoclavicular and coracoid approaches, better observing the brachial plexus cords and vascular structures with the costoclavicular approach. With the arm abducted 90 and 110o, a better visualization of the neurovascular structures and an improvement in the quality of the block was obtained. The ropivacaine dose was 1.5 mg/kg between 0.3-0.5%, with an average motor block time of 6.7 hours, and an average sensory block of 11.25 hours. There were not complications. In conclusion, the brachial plexus block via the costoclavicular approach in the pediatric population is a safe technique.

Three Different Strategies for Repair of Symptomatic or Aneurysmatic Aberrant Right Subclavian Arteries

ABSTRACT Introduction: In this study, we aimed to present three different methods for symptomatic aberrant right subclavian artery (ARSA) surgery. Methods: We identified 11 consecutive adult patients undergoing symptomatic and/or aneurysmal ARSA repair between January 2016 and December 2020. Symptoms were dysphagia (n=8) and dyspnea + dysphagia (n=3). Six patients had aneurysm formation of the ARSA (mean diameter of 4.2 cm [range 2.8 - 6.3]). All data were analyzed retrospectively. Results: Median age of the patients (7 females/4 males) was 55 years (range 49 - 62). The first four patients (36.4%) underwent hybrid repair using thoracic endovascular aortic repair (TEVAR) and bilateral carotid-subclavian artery bypass (CScBp). Three patients (27.2%) were treated by open ARSA resection/ligation with left mini posterolateral thoracotomy (LMPLT) and right CScBp. And the last four patients (36.4%) underwent ARSA resection/ligation with LMPLT and ascending aorta-right subclavian artery bypass with upper mini sternotomy (UMS). Two of the four patients who underwent TEVAR + bilateral CScBp had continuing dysphagia cause of persistent esophageal compression. Brachial plexus injury developed in one of three patients who underwent LMPLT + right CScBp. Pleural effusion treated with thoracentesis alone was observed in one of four patients who underwent UMS + LMPLT. Conclusion: Among the symptomatic and/or aneurysmal ARSA treatment approaches, surgical and hybrid methods are used. There is still no consensus on how to manage these patients. In our study, we recommend the UMS + LMPLT method, since the risk of complications with anatomical bypass is less, and we have more successful surgical results.

Magnetic Resonance as a Method for Diagnosis for Traumatic Lesions by Brachial Plexus Avulsion / Ressonância magnética como método para diagnóstico das lesões traumáticas por avulsão do plexo braquial

Abstract Objective The incidence of traumatic brachial plexus injuries has been increasing considerably in Brazil, mainly due to the increase in the number of motorcycle accidents. The aim of the present study is to evaluate the sensitivity and specificity of magnetic resonance imaging (MRI) in the diagnosis of brachial plexus avulsion lesions, comparing it with the findings of physical and intraoperative examination. Methods A total of 16 patients with brachial plexus injury were prospectively evaluated and treated at the hand surgery outpatient clinic from our service. All patients underwent MRI of the brachial plexus, and the findings were inserted on a table, as well as the physical examination data, and part of the patients had the plexus evaluated intraoperatively. Results In the present study, the accuracy of MRI in the identification of root avulsion was 100%, with 100% sensitivity and specificity when comparing imaging with surgical findings. Conclusion Magnetic resonance imaging showed high sensitivity and specificity, confirmed by intraoperative findings, which allows considering this test as the gold standard in the diagnosis of avulsion in traumatic brachial plexus injuries.

Resumo Objetivo A incidência de lesões traumáticas do plexo braquial vem aumentando consideravelmente no Brasil, principalmente devido ao aumento do número de acidentes de motocicleta. O objetivo do presente estudo é avaliar a sensibilidade e a especificidade da ressonância magnética (RM) no diagnóstico das lesões por avulsão do plexo braquial, comparando com os achados do exame físico e do intraoperatório. Métodos Foram avaliados prospectivamente 16 pacientes com lesão do plexo braquial atendidos no ambulatório de cirurgia da mão de nosso serviço. Todos os pacientes foram submetidos ao exame de RM do plexo braquial e os achados foram inseridos em uma tabela, assim como os dados do exame físico, e parte dos pacientes teve o plexo avaliado intraoperatoriamente. Resultados No presente estudo, a acurácia da RM na identificação de avulsão de raízes foi de 100%, com 100% de sensibilidade e especificidade comparando-se achados da imagem e cirúrgicos. Conclusão A RM mostrou alta sensibilidade e especificidade, confirmadas por achados intraoperatórios, o que permite considerar este exame como padrão outro no diagnóstico de avulsão nas lesões traumáticas do plexo braquial.

Incidencia de parálisis diafragmática secundaria a bloqueo supraclavicular de plexo braquial medida por ecografía en una institución de cuarto nivel / Incidence of Diaphragmatic Paralysis Secondary to Supraclavicular Brachial Plexus Blockade Measured by Ultrasound in a Fourth Level Institution / Incidência de paralisia diafragmática secundária ao bloqueio supraclavicular do plexo braquial medida por ultrassonografia em uma instituição de quarto nivel

Introducción. La anestesia regional es una técnica importante, innovadora y popular para el manejo anestésico y analgésico. En el bloqueo supraclavicular del plexo braquial existe incidencia 50-60% de parálisis diafragmática. La presentación clínica es variable de acuerdo con factores externos e internos del paciente. Existen múltiples técnicas radiológicas en el diagnóstico, siendo de gran utilidad la ecografía por su fácil acceso. El objetivo es determinar la incidencia de parálisis diafragmática secundaria a bloqueo supraclavicular del plexo braquial guiado por ecografía en una institución de cuarto nivel. Metodología. Estudio analítico, longitudinal, prospectivo; se seleccionaron 110 pacientes. Criterios de inclusión: pacientes mayores de 18 años sometidos a cirugía de miembro superior con bloqueo supraclavicular de plexo braquial. Criterios exclusión: pacientes ASA (American Society of anesthesiologist) 4 y 5, gestantes, IMC >35 kg/m2, pacientes con antecedentes neuromusculares, enfermedad pulmonar restrictiva u obstructiva, parálisis nervio frénico o disfunción diafragmática. Se realizó un análisis mediante test estadísticos, describiendo los diferentes grados de parálisis diafragmática. Resultados. En los pacientes que cumplieron con los criterios de inclusión, la incidencia de parálisis diafragmática fue de 65% (37% parálisis total y 28% parcial), el 1.81% presentó síntomas respiratorios sin cambios hemodinámicos. Discusión. El bloqueo del plexo braquial por vía supraclavicular es una técnica relacionada con parálisis diafragmática, la ecografía ha permitido reducir la incidencia de esta complicación, es un método útil en el diagnóstico postoperatorio. Conclusiones. La parálisis diafragmática post bloqueo plexo braquial supraclavicular es una complicación observada principalmente en pacientes con previo compromiso pulmonar, por lo cual es de importancia la vigilancia estricta.

Introduction. Regional anesthesia is an important, innovative, and popular technique for anesthetic and painkiller management. In supraclavicular brachial plexus blockade, there is a 50-60% rate of diaphragmatic paralysis. Clinical presentation is variable according to the patient's internal and external factors. There are multiple radiological techniques in diagnosis, with ultrasounds being very useful due to their easy access. The objective is to determine the incidence of diaphragmatic paralysis secondary to supraclavicular brachial plexus blockade guided by ultrasound in a fourth level institution. Methodology. Prospective, longitudinal, analytical study. 110 patients were selected. Inclusion criteria: patients over 18 years of age subject to upper limb surgery with supraclavicular brachial plexus blockade. Exclusion criteria: ASA (American Society of Anesthesiologists) 4 and 5 patients, pregnant women BMI >35 kg/m2 patients with neuromuscular background, restrictive or obstructive pulmonary disease, phrenic nerve paralysis, or diaphragmatic dysfunction. An analysis was carried out via statistical tests, describing the different degrees of diaphragmatic paralysis. Results. In patients who met the inclusion criteria, the incidence of diaphragmatic paralysis was 65% (37% with total and 28% with partial paralysis), 1.81% showed respiratory symptoms without hemodynamic changes. Discussion. Supraclavicular brachial plexus blockade is a technique related to diaphragmatic paralysis. Ultrasound has allowed for the incidence of this complication to be reduced. It is a useful method in post-operative diagnosis. Conclusions. Diaphragmatic paralysis after supraclavicular brachial plexus blockade is a complication mainly observed in patients with previous pulmonary problems. Therefore, it must be strictly monitored.

Introdução. A anestesia regional é uma técnica importante, inovadora e popular para o manejo anestésico e analgésico. No bloqueio supraclavicular do plexo braquial há uma incidência de 50-60% de paralisia diafragmática. A apresentação clínica é variável de acordo com fatores externos e internos do paciente. Existem múltiplas técnicas radiológicas no diagnóstico, sendo a ultrassonografia muito útil devido ao seu fácil acesso. O objetivo é determinar a incidência de paralisia diafragmática secundária ao bloqueio supraclavicular do plexo braquial guiado por ultrassom em uma instituição de quarto nível. Metodologia. Estudo analítico, longitudinal, prospectivo; 110 pacientes foram selecionados. Critérios de inclusão: pacientes maiores de 18 anos submetidos à cirurgia de membro superior com bloqueio supraclavicular do plexo braquial. Critérios de exclusão: pacientes ASA (American Anesthesiology Society) 4 e 5, gestantes, IMC>35 kg/m2 pacientes com história neuromuscular, doença pulmonar restritiva ou obstrutiva, paralisia do nervo frênico ou disfunção diafragmática. Foi realizada uma análise por meio de testes estatísticos, descrevendo os diferentes graus de paralisia diafragmática. Resultados. Nos pacientes que atenderam aos critérios de inclusão, a incidência de paralisia diafragmática foi de 65% (37% paralisia total e 28% parcial), 1.81% apresentavam sintomas respiratórios sem alterações hemodinâmicas. Discussão. O bloqueio do plexo braquial supraclavicular é uma técnica relacionada à paralisia diafragmática, a ultrassonografia tem reduzido a incidência dessa complicação e é um método útil no diagnóstico pós-operatório. Conclusões. A paralisia diafragmática após bloqueio do plexo braquial supraclavicular é uma complicação observada principalmente em pacientes com envolvimento pulmonar prévio, pelo que é importante vigilância rigorosa.

Evaluación de la parálisis diafragmática con ultrasonido y espirometría: comparación del bloqueo supraclavicular vs bloqueo interescalénico en cirugía de hombro / Evaluation of diaphragmatic paralysis with ultrasound and spirometry: comparison of supraclavicular vs interscalene block in shoulder surgery

Resumen: Introducción: la cirugía artroscópica de hombro ha ganado popularidad recientemente; sin embargo, el dolor postquirúrgico se reporta de moderado a severo. La anestesia regional es útil para el control del dolor postquirúrgico. El bloqueo interescalénico y supraclavicular produce parálisis diafragmática en diferente proporción. Se busca encontrar cuál es el porcentaje y duración de la parálisis hemidiafragmática mediante mediciones ultrasonográficas, correlacionadas con espirometría comparando el abordaje supraclavicular con interescalénico. Material y métodos: ensayo clínico, controlado y aleatorizado. Se incluyeron 52 pacientes entre 18 y 90 años, programados para cirugía artroscópica de hombro, divididos en dos grupos (bloqueo interescalénico y supraclavicular). Se midió la excursión diafragmática y se realizó una espirometría previo al ingreso al quirófano y a las 24 horas de instalación del bloqueo, el estudio concluyó a las 24 horas del evento anestésico. Resultados: la capacidad vital se redujo en 0.7% en el grupo del bloqueo supraclavicular y 7.7% en el grupo interescalénico, el VEF1 se redujo en 0.2% en el supraclavicular y 9.5% en el interescalénico con una diferencia estadísticamente significativa (p = 0.001). La parálisis diafragmática en ventilación espontánea se presentó en ambos abordajes a los 30 minutos, sin diferencia significativa. A las seis y ocho horas continuó la parálisis en el grupo interescalénico, mientras que en el abordaje supraclavicular se mantuvo en comparación con la basal. Conclusiones: el bloqueo supraclavicular resulta tan efectivo como el bloqueo interescalénico en la cirugía artroscópica de hombro, con menor bloqueo diafragmático (1.5 veces más parálisis diafragmática en el interescalénico).

Abstract: Introduction: arthroscopic shoulder surgery has recently gained popularity, however, postoperative pain is reported as moderate to severe. Regional anesthesia is useful for the control of postoperative pain. Interscalene and supraclavicular blocks produce diaphragmatic paralysis in different proportions. The aim of this study is to find the percentage and duration of hemidiaphragmatic paralysis, by means of ultrasonographic measurements, correlated with spirometry, comparing the supraclavicular approach with interscalene. Material and methods: clinical, controlled and randomized trial. Fifty-two patients, between 18 and 90 years of age, scheduled for arthroscopic shoulder surgery were included, divided into 2 groups (interscalene or supraclavicular block). Diaphragmatic excursion was measured and spirometry was performed prior to admission to the operating room and 24 hours after installation of the block, the study concluded 24 hours after the anesthetic event. Results: vital capacity was reduced by 0.7% in the supraclavicular block and 7.7% for the interscalene, FEV1 was reduced by 0.2% for the supraclavicular and 9.5% in the interscalene with a statistically significant difference (p = 0.001). Diaphragmatic paralysis in spontaneous ventilation appeared in both approaches at 30 minutes, without significant difference. At 6 and 8 hours, paralysis continued in the interscalene group, while in the supraclavicular approach it remained preserved compared to the baseline. Conclusions: supraclavicular block is as effective as interscalene block in arthroscopic shoulder surgery, with less diaphragmatic block (1.5 times more diaphragmatic paralysis in interscalene).

A Rare Variation in the Course of C5 Root of Brachial Plexus.

Variations in the formation of the upper trunk of the brachial plexus are relatively rare. Knowledge of its possible variation is useful to orthopedic surgeons dealing with the problems of cervical spine, anesthesiologists performing brachial plexus blocks and general surgeons performing lower neck surgeries. In this report, we present a variation in the formation of the upper trunk of the brachial plexus. The upper trunk was formed by the union of ventral rami of fifth and sixth cervical spinal nerves. The fifth cervical ventral ramus passed ventral to the scalanus anterior muscle, while the sixth cervical ventral ramus passed between the scalanus anterior and medius muscles. The upper trunk was formed at the lateral border of the scalenus anterior muscle.

Nerve root transfer from C4 to C5 in brachial plexus injuries. Anatomical study and description of the surgical technique / Transferência nervosa da raiz de C4 para C5 em lesões do plexo braquial. Estudo anatômico e descrição de técnica cirúrgica

Abstract Objective This is an anatomical study of C4 and C5 roots for nerve transfers in upper brachial plexus injuries, with surgical technique demonstration. Methods Fifteen brachial plexuses from both male and female cadavers were dissected. Morphological features of C4 and C5 roots were recorded and analyzed, followed by a neurotization simulation. Results In all dissections, C4 and C5 roots morphological features allowed their mobilization and neurotization with no need for a nerve graft. The surgical technique spared important regional nerve branches. Conclusion Based on these data, we conclude that C4-C5 nerve transfers are feasible and result in no additional neurological deficit in upper brachial plexus injuries.

Resumo Objetivo Estudo anatômico das raízes usadas na transferência nervosa de C4 para C5 nas lesões altas do plexo braquial, com demonstração da técnica cirúrgica. Métodos Dissecção de 15 plexos braquiais de cadáveres de ambos os sexos, registro e análise das características morfológicas das raízes de C4 e C5 e simulação de neurotização. Resultados As características morfológicas encontradas nas raízes de C4 e C5 em todas as dissecções permitiram a mobilização das mesmas e a realização de uma neurotização sem a necessidade de usar enxerto nervoso. A técnica cirúrgica permitiu preservar ramos nervosos importantes na região abordada. Conclusão Com base nos dados encontrados no presente estudo, podemos concluir que é possível realizar a transferência entre C4 e C5 sem provocar déficit neurológico adicional nas lesões altas de plexo braquial.

Five oriented tasks in manual skills of a baby child with obstetric brachial plexus palsy / Cinco tarefas direcionadas nas habilidades manuais de uma criança com paralisia braquial obstétrica

Brachial plexus (BP) injury during labor is called obstetric brachial palsy (OBP). It is an abnormality that occurs in the upper extremity of the body due to excessive stretching of the neural roots of the BP. Every motor skill that the child with OPB acquires will be hampered by the deficiency in the movement of an upper limb (MS), impacting his motor experimentation. To modify their motor behavior, task-directed therapy can contribute to the function of the affected upper limb, because it is characterized by a protocol of functional exercises, which is still scarce in researches aimed at this morbidity. The objective of the study was to evaluate the effect of a motor intervention by means of five directed tasks on the manual skills of the upper limb of a child with OBP, as well as on his gross motor function. The child in the study was 17 months old, with left OBP, with weakness of shoulder abduction, external rotation, elbow flexion and wrist drop. He underwent 24 physiotherapy sessions with directed tasks for 45 minutes, three times a week. The Manual Ability Classification System (MACS) was used to classify the degree of severity of the MSE. The Gross Motor Function Measure (GMFM-66) quantitatively measured motor and static aspects and the Gross Motor Function Classification System (GMFCS) was used to determine which level best represented the abilities and limitations in the child's gross motor function. The targeted tasks were based on the model of the Induced Constraint Therapy (ICT) protocol, being: find the surprise; orange spoon; hair elastic fitting; fishing for bottle caps; stacking blocks. In the post-intervention assessments, the MACS showed improvement in the tasks of finding the surprise, orange spoon, and fishing for lids, but remained the same in the level of the activities of fitting the rubber bands and stacking the blocks. The GMFM-66 obtained an increase in the final score and the GMFCS remained at the level I. The GMFM-66 showed a 4.99% improvement at the end of the intervention. The activities finding the surprise, picking oranges, and fishing for bottle caps showed an improvement in the MACS level classification compared to the initial assessment. The findings show better muscle recruitment, with refinement in elbow flexion movements, forearm supination and external rotation (ER) of the shoulder (AU)

A lesão do plexo braquial (PB) durante o parto é denominada paralisia braquial obstétrica (PBO). É uma anormalidade que ocorre na extremidade superior do corpo, em consequência de um estiramento excessivo das raízes neurais do PB. Toda habilidade motora que a criança com PBO adquirir será dificultada pela deficiência na movimentação de um membro superior (MS), repercutindo em suas experimentações motoras. Para modificar seu comportamento motor, a terapia por tarefas direcionadas pode contribuir na função do MS afetado, pois a mesma caracteriza-se com um protocolo de exercícios funcionais, que ainda há escassez em pesquisas voltados a esta morbidade. O objetivo do estudo foi avaliar o efeito de uma intervenção motora através de cinco tarefas direcionadas sobre as habilidades manuais do membro superior de uma criança com PBO, bem como sua função motora grossa. A criança do estudo tinha 17 meses, com PBO à esquerda, com fraqueza de abdução de ombro, rotação externa, flexão de cotovelo e queda do punho. Realizou 24 sessões de fisioterapia com tarefas direcionadas por 45 minutos, três vezes por semana. Para classificar o grau de severidade do MSE, foi utilizado o Manual Ability Classification System (MACS). A Medida da Função Motora Grossa (GMFM-66) mediu quantitativamente aspectos motores e estáticos e o Sistema de Classificação da Função Motora Grossa (GMFCS) foi utilizado para determinar qual nível melhor representou as habilidades e limitações na função motora grossa da criança. As tarefas direcionadas foram baseadas no modelo do protocolo de terapia por contensão induzida (TCI), sendo: achar a surpresa; colher laranja; encaixar elástico de cabelo; pescaria de tampinhas; empilhar blocos. Nas avaliações pós-intervenção, o MACS demonstrou melhora no nível das tarefas de achar a surpresa, colher laranja e pescaria de tampinhas, mas manteve-se igual no nível das atividades de encaixar os elásticos e empilhar os blocos. O GMFM-66 obteve aumento do escore final e o GMFCS manteve-se no nível I. O GMFM-66 apresentou melhora de 4,99% ao final da intervenção. As atividades de achar a surpresa; colher laranjas e pescaria de tampinhas obtiveram melhora na classificação no nível do MACS quando comparadas à avaliação inicial. Os achados evidenciam melhor recrutamento muscular, com refinamento nos movimentos de flexão de cotovelo; supinação do antebraço e rotação externa (RE) de ombro (AU)